Grease cup



Feb. 13, 1923..

C. C- HAMILTON ET AL.

' GREASE CUP.

FILED MAR. 22, 1922.

IUHHH WITNESSES v l/w/g/vrofis 1 J.Hu1fch1n 0n, .WM QL. Hami Hon,

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Application also. aha 22. 1922. Serial Ira-Marie.

I! 0 all whom it may concern .Be it known that we, Cnirrorn (i. li'ilAIttilL TON and Josnrn HUroI-Iinsois, subjects oi":

the llingoit' England, and residents oitrl-ull Lake, in the Province of Saskatchewan and Dominion or Canada, have invented certain An object ofour invention is to pro vide a grease cup of the character described maintain ing the detachably. connected parts thereof in assembled positionfwithout in any way reny usual manner.

dering the assembly ofisuch parts more dii ficult of accomplishment than would he the case where a grease cup of ordinary construction is used. i a

A further object of our invention is to provide a grease cup of the character described in which a body portion carries a spring member adapted to engage a detachable capfor the body portion in such manner as to tend to hold the cap in applied position upon'the body portion and to prevent retrograde movement of the cap relatively to thebody portion on account of: vibrations communicated to the grease cup in service. a i 1 y I 3 it further object of our invention is to provide a grease cuphaving means for guarding the inlet end of thedelivery or discharge portion thereof to prevent the passage into such discharge portion oi. sol.

ids or semi-solid masses or grease or any other material which would obstruct thefdelivery and prevent the iieeding oil a. viscldj lubricant therethrough continuously in; the

A further object oli our inventionis to provide a grease cup of the character de- 3 scribed, whichis of simple construction, not

likely to get .out'oi order easily, and thorou hly practical commercially.

y the]: objects and advantages will be apparent fromthe following description, and the novelcteaturesmot the invention will be improved grease cup,

particularly outlined in the appended claims.

@ur invention is illustrated in the accompanying drawing, forming a part oi this application, 1n which- Figure l is a side elevation showing a bearing equipped without" improved grease cup, i

Figure 2 is a vertical section through the and Figure 3 is a perspective view showii'ig the parts of the grease cup in detached or separated positions.

In carrying our invention into effect in the formnow preferred by us, as illustrated in the accompanying drawings, we provide a body consisting of a substantially tunnelshaped lower 130111101111 formed integrally with a cylindrical upper'portion 2. The body is made or any sultable material, such as anyone of the metals ordinarily used 111 themanufacture of like devices and the funnel-shaped. portion 1 and the cylindrical portion2 thereof are preferably formed in tegrally with eachother. The walls oi? the tlunnel-shaped portion 1 are merged at the lower end of the body into the walls ol -a tubular stem 3 which is preferably formed with the upper part thereof polygonal in contour, as indicated at tinFigures 1 and 3, with the lower part thereot reduced diametrically andscrew threadedexternally adjacent to the end thereof, as indicated at The stem 8 is shown as being aligned with. the bodyand provided at its lower end with a discharge orifice 6.

Thecylindrical portion 2 is provided with external screw threads 7 adapted to engage screw threads 8 formed on the inner wall of a cap 9, wlierebythe latter will be detachably secured to the body.

It is desirable that the cap beheld against accidental displacement from the body and for substantially U-shaped guard portion 11 which is arranged to overlie the inlet end of the stem 3." The portions of the spring member 10 extending oppositely from the arched intermediate portion are adapted to lie'flatwise upon the inner wall of the funnel-shaped portion 1 and are bent upwardly at 12 adjacent to the juncture of the funnelshaped portion 1 with the cylindrical portion 2 to extend vertically in spaced parallel relation to the inner wall oi? the latter, as indicated. at 13-43 to the plane of the upper edge oi the cylindrical portion 2. The portions l3-13 are then bent substantially at right angles to extend oppositely substantially in. the plane of the upper edge of the cylindrical portion 2 as indicated at ra -1e. The portions 1l-l4r terminate with the ends thereof projecting slightly beyond the screw threads 7 and. being curved to conform with the curvature of the screw threaded cylindrical portion 2, as shown at 1515. Rivets 16 or like fastening means projected through the walls of the inclined or 'lfunneLshaped portion 1 and through the portions of the spring member 10 disposed thereupon secure the spring member 10 to the'body in the position in which illustrated in the drawings. It is to be observed that the rivets 16 engage the spring member 10 at points between the upwardly bent portions 13- 13 and the arched intermediate portion 11, whereby the end portions of the spring member 10 are capable of limited movement under stress or under actuation occasioned by their inherent spring qualities, while the arched intermediate portion 11 is held substantially rigid.

The convolution of the screw threads 8 at the lower end of the cap is cut away to provide a counter-bore 17 adapted to receive the ends of the spring member 10, the curved end walls 15-45 of the spring member 10 being guided by their engagement with the walls of the counter-bore 17 into engagement with the screw threads 8 as the cap is screwed on the cylindrical portion 2 of the body.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood. The embodiment of the invention illustrated is adapted to contain a lubricant which is sufficientlyfluid. to be fed continuously through the discharge orifice 6 to a bearing, such as indicatedqat 18 to which. the stem 3 is connected through the agency of the screw threads 5. When the cap 9has been placed in applied position upon the body in the manner described, the end portions 1l1 l of the spring 10 willbe continuously urged against the screw threads 8 of the cap, thereby yieldingly resisting movement of the latter relatively to the body and proventing displacement of the capv from the body on account of vibrations caused by shocks or jars incident to service. The counter-bore 1'? permits the entrance of the ends of the spring within the cap and guides the ends into engagement with the screw threads 8.

The arched portion 11 overlies the open upper end of the bore oi the stem ll and prevents the passage thereinto oi any large solid objects or hardened imisses which would be lilrely to obstruct the bore of thc stem. The arched portion ll. does not in any way inter'li'ere with the LHIFISHQH (ii a viscid lubricant from the body of the device into the stem.

Obviously, our iiiWent-ion susce 'itible oi en'ihodiment in forms other than that illustrated in the accom mnying drawing, and We therefore consider as our own all modilirwn tions and adaptations of the form oi the device disclosed herein which properly fall within the scope ()li the appended claims.

We clai.m:

l. A grease cup comprising a hollow body portion open at its upper end and provided at its lower end with an outlet, a cap removably secured upon the body portion, and a spring disposed substantially diametrically off the body and having the ends thereof reacting against the walls of the cap to tend to hold the latter against movement relatively to the body, the intermediate portion. of the spring being disposed in overlying spaced relation to the outlet.

2. A. grease cup comprising a body adapted at its upper end to receive a lubricant and being provided with external screw threads adjacent to its upper end, said body having an outlet opening through the lower end. thereof, a cap provided with screw threads internally adapted to engage the screw threads of the body, and a spring member secured to the inner walls oi v the body to extend transversely thereof. and being ol such length that the ends thereof extend slightly beyond the screw threads of the body and are adapted to react. against the screw threads 0! the cap when the latter i in applied posit-ion upon the body, said spring member having the intermediate portion thereof arched to lie in overlying spaced relation to the outlet.

3. A grease cup comprising a hollow body having a tapering lower portion provided. with a central outlet, a cap reu'iovably secured upon the body, and a spring member disposed transversely of the body, said spring member having an arched intm'mcdiatc portion m'erlying the outlet orifice. and spaced therefrom, portions extending oppositely from the arched portion and being secured to the body at points intermediate. otthc arched portion and theends of the spring member, and end portions extending nornutlly beyond the outer wall oi: the body SUbSlJHH- tially at diametrically opposite points and llil) meats"? to hold the latter against accidental displacement from the body.

s. A grease cup comprising a body adapted to receive a lubricant, a cap removably mounted upon the body and being provided with a counter-bore atits lower end, and a spring member disposed transversely of the body and having the outer ends thereof ex-v tending slightly beyond the outer wall of the body at the upper end thereof, the norrnal distance between the ends of said spring member being substantially equal to the diameter of the oounter-bore whereby the ends of the spring member will enter the countr-znbore and be guided by their engageintent with the Wall of the latter into engagewent with the innerWall of the cap above the counter-bore when the cap is placed upon the body. l 1 y 5. A grease cup comprising a body adapted to receive a lubricant a cap adapted to be detachably mounted upon the body and being provided with a counter-bore at its lower end, a spring member disposed transversely of the body and having the ends thereof extending slightly beyond the outer Wall of the body, the distance between the ends of said spring member being substantially equal to the diameter of the counterbore, and said spring member being curved at its ends to conform with the curvature of the Wall of the co-unterbore.

6. A grease cup comprising a body adapted to'receive a lubricant and being screw threaded externally at its upper end, a cap screw threaded internally adjacent to its lower end for engagement with the screw threads of the body, the lowermost convolution of the screw threads being eut away to provide a counter-bore at the lower end of the cap, and a spring member disposed substantially transversely of the body with the ends thereof extending slightly beyond the outer Wall of the body and being adapted to enter the counter-bore of the ca CLIFFORD COATES HAMILTON. JOSEPH HUTCHINSON. 

